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Pulmonary Disease

Theodossis Zacharis, MD

Works at hospitals in Daytona Beach, FL · Deland, FL · Orange City, FL … · Florida

Summary

Dr. Theodossis Zacharis, MD is a pulmonologist at 1055 N Dixie Fwy, Suite 1, New Smyrna Beach, FL 32168. Phone: (386) 423-0505. Accepts Medicare assignment. In 2024, Theodossis Zacharis had 2,242 Original Medicare patients and 59,969 services. NPI 1205889243. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Theodossis Zacharis, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Theodossis Zacharis accept Medicare assignment?
Yes. Medicare's clinician data says Theodossis Zacharis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Theodossis Zacharis see?
In 2024, CMS data shows 2,242 Original Medicare patients and 59,969 services for Theodossis Zacharis. This counts Original Medicare only and measures volume, not quality.
What is Theodossis Zacharis's NPI number?
1205889243. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Theodossis Zacharis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients2,242
Services billed to Medicare59,969
Different services or procedures72
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)29,929 services
  2. Injection, dexamethasone sodium phosphate, 1 mg (J1100)11,102 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)3,837 services
  4. Injection, ceftriaxone sodium, per 250 mg (J0696)1,869 services
  5. Test to measure expiratory airflow and volume changes before and after medication administration (94060)1,613 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • COPD62%
  • Arthritis58%
  • Ischemic heart disease50%
  • Chronic kidney disease39%

Hospitals where Theodossis Zacharis works

Medicare's Facility Affiliation Data lists Theodossis Zacharis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Theodossis Zacharis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Theodossis Zacharis as a member of this group (CMS data updated October 2, 2026).

  • PCCC of Volusia LLC15 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in Florida →

Other pulmonologists in New Smyrna Beach

Clinicians with the same Medicare primary specialty in New Smyrna Beach, FL — not a recommendation.

All pulmonologists in New Smyrna Beach →

Other clinicians in PCCC of Volusia LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205889243
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians